Amalgamating-concentrator.



L. GAN NAD AY. AMALGAMATING 00NCEITRA'I'OR..v

APPLICATION FILED SEPT. 23, 1912.

Patented A111222, `1913.

unirsi) spawns PATENT OFFICE.

LEE icannanar; or :PABX errar, u'rlizrt.I

*AMALGAMArINe-concnnrnaron.

` p Speciication` `ofLet'cers Patent. PatenhedApl'l. 22,1913; :Application exea september 23,1912. serial mi vannes.

To all whom r'tmrzy concern.'

Be it known that il, `lLnr. CANiaAlntir,` of Park City, in the county `of Summit `and drawings, :is a specification.

My; invention relates `vto amalgamating `concentrators used ifor `separating `the precious `metal `from `the pulp `of water and crushed rockdor sand, `which contains it,

and to those concentrators" that combinelthe use 'of mercury, for amalgamating,witl1`the force of gravityrand lcentrifugall motionas a means of soseparatingland collecting `the` as follows: The `pulp enters therst cirri preciousmetal. i i i m The object of .my rinventlon 1s to.` provlde drawings in which- Figure 11 is :a plan view; Fig. i 2 "is `a sec-` tion `on :the aline iA--Ag Figr lis la section onthe line B--`B, and Fig. iis a ifull size sectionrof the copper `plates used for `amal-` gamating purposes. p

The construction `of my Y lows: A sluicelentersaclrcularchamberlof .such dimensions `as experience may y show "to be the best and this circular chamber is .con-V nected with one or more other circular chambers as experience may ascertain to `be necessary.V "In mydrawings `[lhave two cir cular chambers. 1. These `circular chambers are connected lby `a sluice way-` Eachycin cular chamber `isyoi' the shape of aninverted frustum of a cone. Along the `sides of each chamber and along `the sidesyof the sluice ways connecting the variouscircular chambers are laced and fastened amal mating plates. t :intervals along the si e `plates are placed baliie plates `projectingat right angles to the side plates. These bale plates and side plates are covered with scouting of mercurylbefore each operation: and `Are scraped in the usual-manner after thecessntion of the operation to collect thel amalgam deposited thereon.` Within each chamber I provide a propeller having the diameter of the lower portion of its blades in excess of the diameter `of its upper portions. These lin such shape as to form a nel attherbottom of each andt ebale plates ydevice `is `as kfol-I are placed `a e copper si e plates are bent are placed at right angles thereto at a slight distance above the turned up edge of the outer side of-the groove.

`Referring now to the drawings; C is the jsluice `box through which the pulp enters i the `first circular chamber l.

2risone ofthe pro ellers; 3 is the shaft' on which 'nt-he propel er revolves; 4 is the )pulley driving the shaft; 5 is the sluice way connecting the twocircular chambers; 6, 6 i

are copper side plates of the shape shown 1n Fig. 4;7; 7 are baiile plates attached at; right angles to the side plates.

The manner of operation of my device is cular` `chamber `throu h a sluice C and is caught by the revolving blades of the propeller and thrown against the sides of the rst crcularchamber by centrifugal motion. s Itwill also be noticed that the Plates of the propeller are curved backward 1n1the opposite direction of their motion. The object of this is to assist in throwing the pulp against the circular walls of the chamber. It will also he noticed that the plates of the` propeller `have a-greater diameter atthe bottom `thanlat thetop.` The object of` this is to assist in throwing the iplulp) upward and to prevent its falling to e ottom of the` chamber.` The pulphaving been thrown `the blades of the :propleller against the c rcular walls passes on t rou h the sluice way `5, `into `the next circular c amber. In its `passage `through the sluice waylthe pulp has a tendencylowing to its propulsion by the lates-of t e r elle?, to im in con one iifrthe sides ofllzhoepsluice wa pAcgcord inglythe c ong this side of the sluie way. After the `pulp it is again caught b the propeller an thrown around and against the walls ef `the `circular Chambonl and thus out throu h the sluice D, tothe dump.` As there is t e same tendency ofthe pulp to impinge on one side of the last mentioned Islulce` the copper baffle plates `and side plates are placed own on that side.

It will be understood that silver platesl or any other suitable plates for amalgamating per side plates and hie plates!` enters the second chamber the revclviugrplates of purposes can be used instead of the copper i plates.

By reason of the well known law of cen trifugal `force the `heavier particles of the pulp, namely, the v precious metal, are thrown against the walls of each circular chamber and one side of each sluice way. rlhere,` they are caught by the various baille plates and dropping downward, continue their course through the grooved channel at the bottom of each sidef'plate until the par- -f ticles of metal amalgamate with the mercury or until they are thrown out ofthe chamber along the sluice way into the next circular chamber where the same operation is repeated, the sluice and tailings at last passingthrough the sluice D to the dump.

ln the case of gold there-is sometimes `a greasy coating kwhich prevents the gold rom amalgamating.` By reason of friction against the walls of the first chamber,fI find thatl the gold is polished and hence whenl it.. strikes against the amalgamating plates in the second chamber, amalgamating takes place at once. It will be understood that yparticles of goldy or other precious metal being heavier than the surrounding part` of t pulp, are thrown vfarthest against the walls of the circular chambers. Such mercury as falls from the plates collects at the bottom of each chamber as shown at E, Fig. 3, along with particles of the pulp. v a

Having thus described my inventionwhat l :claim as new ,and :desire to secure `by `Letters Patent is: V

1. An annalgamatingl concentratory consisting of a tank, feed means, an exit sluice,

the sides of the tank and the side of 'the t sisting `of an inverted frustum of la cone shaped tank, the sides of the saidtank being covered with horizontally placed amalgarnating plates lhaving their-lower edge4 bent upto form a1 groove, a `plurality of baille, plates positioned at intervalslverti-v cally against the lsaid amalgamating plates, a propeller ,revolvingin -the said tank havf ing a plurality of bladesthe upper-radius of l Y each blade being less than the lower, means for revolving the said propeller, an exit sluice having the side upon whichthetan` gential current from the tank impinges f covered `with a continuation ofl the 'said 60 amalgamating lates and provided with a plurality of ba e plates in a like manner.l c

3. An amalga-mating` concentrator consisting of a tank, a revolving propeller hav-y ing a `plurality of blades curved backward i in the opposite direction tothe path 'of revolution, an exit sluiceleading from; the said tank, the side of the exit s'luice vupon which the tangential currentl from .the tank im-` ping'es being covered withi a f pluralityl lof 4`70 amalgamating plates having their .v lower edges turned up to-formchannels, a `series 1 of baffle plates positioned at right angles to Y the said amalgamating plates and saidV amalgamating plates'and baille plates con;- 75

tinuingaround the inner circumference of the said tank. y

4l. An` amalgamating concentrator `conf sisting of a tank, the inner circumference of the said tank being coveredwith. a plurality l i i of horizontally p placed amalgamating `plates having their lower edges bentup to form a lchannel `and a plurality ot amalgamating baille plates placed radially and vertically against the said circumferential -amalgamatingl plates, said circumferential and baille amalgamating 'plates being provided with a coating of quick silver a revolvingvpropel- 1er having a plurality `of blades,` the blades having their upper radius less thanetheir'wQO lower and yleach blade being curved ibackward in a direction opposite to the'path of y its motion an exit sluice ihaving they side upon which the tangential current from the tank impinges covered .with-Qa' continuationV 95 D of thesaid channeled and bailleplates.v

In witness whereof I havehereunto set` my hand. in `the presence of two subscribing y witnesses this 16th4 day of September, 1912.. .K

LEE CANNADY. AWitnesses: d

H. Pl BRIMHALL,

Wi lJyCAMonloH.

iard.; 

